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29th Aug 2009
Diana and Meera's Best Bits
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Diana and Meera select their favourite bits of Naked Science, including parajetting over the Himalayas, digging up Greek brothels and making the perfect cup of tea scientifically. Plus, Dr Hal blows up an ostrich egg and blasts a 'barking dog' down a seven-foot test tube. *No animals were harmed in the making of this podcast*
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Interviews
It seems that it’s no longer impressive just to have been able to climb mount Everest; now the goal is to fly over it! We spoke to Giles Cardozo and Bear Grylls...
There's a new method of archaeological dating in town and it doesn't involve wine or chocolate. Rehydroxylation could give carbon-14 the boot...
Is sword swallowing an ancient art, or just a magic trick? Dan Meyer, president of the Sword Swallowers Federation International, joins us to explain the science behind swallowing swords, and how we was awarded an IgNobel Prize...
We find out how life in the ancient Greek home wasn't just dinner and a game of Trivial Pursuit...
Where did spectroscopy come from? This week's element is erbium: an otherwise little-known substance with a luminous secret...
Could the credit crunch be due to traders' hormone levels? Meera speaks to John Coates to find out...
This week's Explosive Chemistry with Dr Hal featured the following amazing experiments...
Kitchen Science

Hydrogen is an extremely flammable gas, but what happens if you fill an egg with it, light the top and retire to a safe distance?
We were asked whether if you are going to leave your tea for a while should you add the milk at the start or end of your wait? Which way gives the hottest tea?

This is a classic chemistry experiment dating back to the 19th century with impressive, loud and sometimes explosive results.

Dr Hal brought along another classic chemistry experiment, the phosphorus moon, with rather beautiful results.
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